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- EMDB-74114: Competition for different elements of the nucleosome acidic patch... -

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Basic information

Entry
Database: EMDB / ID: EMD-74114
TitleCompetition for different elements of the nucleosome acidic patch yields distinct functional outcomes. VHH 1G1
Map data
Sample
  • Complex: Nucleosome-VHH complex containing single-chain antibody 1G1
    • DNA: DNA Tracking Strand
    • DNA: DNA Lagging Strand
    • Protein or peptide: Histone H3.1
    • Protein or peptide: Histone H4
    • Protein or peptide: Histone H2A type 1-B/E
    • Protein or peptide: Histone H2B type 1-K
    • Protein or peptide: Single-chain antibody (VHH) 1G1
Keywordschromatin / nucleosome / VHH / antibody / acidic-patch / AP / DE NOVO PROTEIN
Function / homology
Function and homology information


negative regulation of megakaryocyte differentiation / protein localization to CENP-A containing chromatin / Chromatin modifying enzymes / Replacement of protamines by nucleosomes in the male pronucleus / CENP-A containing nucleosome / Packaging Of Telomere Ends / Recognition and association of DNA glycosylase with site containing an affected purine / Cleavage of the damaged purine / Deposition of new CENPA-containing nucleosomes at the centromere / telomere organization ...negative regulation of megakaryocyte differentiation / protein localization to CENP-A containing chromatin / Chromatin modifying enzymes / Replacement of protamines by nucleosomes in the male pronucleus / CENP-A containing nucleosome / Packaging Of Telomere Ends / Recognition and association of DNA glycosylase with site containing an affected purine / Cleavage of the damaged purine / Deposition of new CENPA-containing nucleosomes at the centromere / telomere organization / Recognition and association of DNA glycosylase with site containing an affected pyrimidine / Cleavage of the damaged pyrimidine / Interleukin-7 signaling / epigenetic regulation of gene expression / RNA Polymerase I Promoter Opening / Inhibition of DNA recombination at telomere / Assembly of the ORC complex at the origin of replication / Meiotic synapsis / SUMOylation of chromatin organization proteins / Regulation of endogenous retroelements by the Human Silencing Hub (HUSH) complex / DNA methylation / Condensation of Prophase Chromosomes / Chromatin modifications during the maternal to zygotic transition (MZT) / SIRT1 negatively regulates rRNA expression / HCMV Late Events / ERCC6 (CSB) and EHMT2 (G9a) positively regulate rRNA expression / PRC2 methylates histones and DNA / Regulation of endogenous retroelements by KRAB-ZFP proteins / innate immune response in mucosa / Defective pyroptosis / Negative Regulation of CDH1 Gene Transcription / HDACs deacetylate histones / Regulation of endogenous retroelements by Piwi-interacting RNAs (piRNAs) / Nonhomologous End-Joining (NHEJ) / RNA Polymerase I Promoter Escape / Transcriptional regulation by small RNAs / Formation of the beta-catenin:TCF transactivating complex / Activated PKN1 stimulates transcription of AR (androgen receptor) regulated genes KLK2 and KLK3 / HDMs demethylate histones / RUNX1 regulates genes involved in megakaryocyte differentiation and platelet function / G2/M DNA damage checkpoint / NoRC negatively regulates rRNA expression / B-WICH complex positively regulates rRNA expression / PKMTs methylate histone lysines / DNA Damage/Telomere Stress Induced Senescence / Pre-NOTCH Transcription and Translation / Meiotic recombination / Activation of anterior HOX genes in hindbrain development during early embryogenesis / Metalloprotease DUBs / Transcriptional regulation of granulopoiesis / RMTs methylate histone arginines / HCMV Early Events / structural constituent of chromatin / UCH proteinases / heterochromatin formation / nucleosome / antimicrobial humoral immune response mediated by antimicrobial peptide / nucleosome assembly / E3 ubiquitin ligases ubiquitinate target proteins / antibacterial humoral response / Recruitment and ATM-mediated phosphorylation of repair and signaling proteins at DNA double strand breaks / HATs acetylate histones / RUNX1 regulates transcription of genes involved in differentiation of HSCs / Factors involved in megakaryocyte development and platelet production / MLL4 and MLL3 complexes regulate expression of PPARG target genes in adipogenesis and hepatic steatosis / chromatin organization / Processing of DNA double-strand break ends / Senescence-Associated Secretory Phenotype (SASP) / Oxidative Stress Induced Senescence / Estrogen-dependent gene expression / killing of cells of another organism / defense response to Gram-negative bacterium / chromosome, telomeric region / Ub-specific processing proteases / defense response to Gram-positive bacterium / cadherin binding / Amyloid fiber formation / protein heterodimerization activity / negative regulation of cell population proliferation / protein-containing complex / extracellular space / DNA binding / RNA binding / extracellular exosome / extracellular region / nucleoplasm / membrane / nucleus / cytosol
Similarity search - Function
: / Histone H2A conserved site / Histone H2A signature. / Histone H2B signature. / Histone H2B / Histone H2B / Histone H2A, C-terminal domain / C-terminus of histone H2A / Histone 2A / Histone H2A ...: / Histone H2A conserved site / Histone H2A signature. / Histone H2B signature. / Histone H2B / Histone H2B / Histone H2A, C-terminal domain / C-terminus of histone H2A / Histone 2A / Histone H2A / TATA box binding protein associated factor / TATA box binding protein associated factor (TAF), histone-like fold domain / Histone H4, conserved site / Histone H4 signature. / Histone H4 / Histone H4 / CENP-T/Histone H4, histone fold / Centromere kinetochore component CENP-T histone fold / Histone H3 signature 1. / Histone H3 signature 2. / Histone H3 / Histone H3/CENP-A / Histone H2A/H2B/H3 / Core histone H2A/H2B/H3/H4 domain / Histone-fold
Similarity search - Domain/homology
Histone H2B type 1-K / Histone H2A type 1-B/E / Histone H4 / Histone H3.1
Similarity search - Component
Biological speciesHomo sapiens (human) / artificial sequences (others)
Methodsingle particle reconstruction / cryo EM / Resolution: 3.1 Å
AuthorsChakraborty U / Saccone EC / Becerra GC / Khan LF / Arslanovic N / Aguilar R / Gloor SL / Hunt SR / Folkwein HJ / Husby NL ...Chakraborty U / Saccone EC / Becerra GC / Khan LF / Arslanovic N / Aguilar R / Gloor SL / Hunt SR / Folkwein HJ / Husby NL / Maier KE / Marunde MR / Schomburg NK / Vaidya A / Cowles MW / Venters BJ / Kassavetis G / Sun Z-W / Kadonaga JT / Armache J-P / Keogh M-C / Tyler JK
Funding support United States, 8 items
OrganizationGrant numberCountry
National Institutes of Health/National Human Genome Research Institute (NIH/NHGRI)R44HG010640 United States
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)R44GM117683 United States
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)R44GM136172 United States
National Institutes of Health/National Cancer Institute (NIH/NCI)R44CA212733 United States
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)R43GM134834 United States
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)R01GM149780 United States
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)R35GM139816 United States
National Institutes of Health/National Cancer Institute (NIH/NCI)R01CA95641 United States
CitationJournal: To Be Published
Title: Competition for different elements of the nucleosome acidic patch yields distinct functional outcomes
Authors: Chakraborty U / Saccone EC / Becerra GC / Khan LF / Arslanovic N / Aguilar R / Gloor SL / Hunt SR / Folkwein HJ / Husby NL / Maier KE / Marunde MR / Schomburg NK / Vaidya A / Cowles MW / ...Authors: Chakraborty U / Saccone EC / Becerra GC / Khan LF / Arslanovic N / Aguilar R / Gloor SL / Hunt SR / Folkwein HJ / Husby NL / Maier KE / Marunde MR / Schomburg NK / Vaidya A / Cowles MW / Venters BJ / Kassavetis G / Sun Z-W / Kadonaga JT / Armache J-P / Keogh M-C / Tyler JK
History
DepositionNov 30, 2025-
Header (metadata) releaseMar 4, 2026-
Map releaseMar 4, 2026-
UpdateMar 4, 2026-
Current statusMar 4, 2026Processing site: RCSB / Status: Released

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Structure visualization

Supplemental images

emd_74114.png

Downloads & links

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Map

FileDownload / File: emd_74114.map.gz / Format: CCP4 / Size: 103 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Projections & slices

Image control

Size
Brightness
Contrast
Others
AxesZ (Sec.)Y (Row.)X (Col.)
1.1 Å/pix.
x 300 pix.
= 329.4 Å		1.1 Å/pix.
x 300 pix.
= 329.4 Å		1.1 Å/pix.
x 300 pix.
= 329.4 Å

Surface

Projections

Slices (1/3)

Slices (1/2)

Slices (2/3)

Images are generated by Spider.

Voxel sizeX=Y=Z: 1.098 Å
Density

Histogram

Histogram (log scale)
Contour LevelBy AUTHOR: 0.15
Minimum - Maximum-0.0 - 1.1473802
Average (Standard dev.)0.0029477181 (±0.021097746)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions300300300
Spacing300300300
CellA=B=C: 329.40002 Å
α=β=γ: 90.0 °

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Supplemental data

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Additional map: auto-sharpened in cryoSPARC

Fileemd_74114_additional_1.map
Annotationauto-sharpened in cryoSPARC
Projections & Slices
AxesZYX

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Density Histograms

Histogram

Histogram (log scale)

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Half map: #2

Fileemd_74114_half_map_1.map
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Half map: #1

Fileemd_74114_half_map_2.map
Projections & Slices
AxesZYX

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Sample components

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Entire : Nucleosome-VHH complex containing single-chain antibody 1G1

EntireName: Nucleosome-VHH complex containing single-chain antibody 1G1
Components
  • Complex: Nucleosome-VHH complex containing single-chain antibody 1G1
    • DNA: DNA Tracking Strand
    • DNA: DNA Lagging Strand
    • Protein or peptide: Histone H3.1
    • Protein or peptide: Histone H4
    • Protein or peptide: Histone H2A type 1-B/E
    • Protein or peptide: Histone H2B type 1-K
    • Protein or peptide: Single-chain antibody (VHH) 1G1

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Supramolecule #1: Nucleosome-VHH complex containing single-chain antibody 1G1

SupramoleculeName: Nucleosome-VHH complex containing single-chain antibody 1G1
type: complex / ID: 1 / Parent: 0 / Macromolecule list: all
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 280 KDa

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Macromolecule #1: DNA Tracking Strand

MacromoleculeName: DNA Tracking Strand / type: dna / ID: 1 / Number of copies: 1 / Classification: DNA
Source (natural)Organism: artificial sequences (others)
Molecular weightTheoretical: 44.520383 KDa
SequenceString: (DA)(DT)(DC)(DA)(DG)(DA)(DA)(DT)(DC)(DC) (DC)(DG)(DG)(DT)(DG)(DC)(DC)(DG)(DA)(DG) (DG)(DC)(DC)(DG)(DC)(DT)(DC)(DA)(DA) (DT)(DT)(DG)(DG)(DT)(DC)(DG)(DT)(DA)(DG) (DA) (DC)(DA)(DG)(DC)(DT)(DC) ...String:
(DA)(DT)(DC)(DA)(DG)(DA)(DA)(DT)(DC)(DC) (DC)(DG)(DG)(DT)(DG)(DC)(DC)(DG)(DA)(DG) (DG)(DC)(DC)(DG)(DC)(DT)(DC)(DA)(DA) (DT)(DT)(DG)(DG)(DT)(DC)(DG)(DT)(DA)(DG) (DA) (DC)(DA)(DG)(DC)(DT)(DC)(DT)(DA) (DG)(DC)(DA)(DC)(DC)(DG)(DC)(DT)(DT)(DA) (DA)(DA) (DC)(DG)(DC)(DA)(DC)(DG)(DT) (DA)(DC)(DG)(DC)(DG)(DC)(DT)(DG)(DT)(DC) (DC)(DC)(DC) (DC)(DG)(DC)(DG)(DT)(DT) (DT)(DT)(DA)(DA)(DC)(DC)(DG)(DC)(DC)(DA) (DA)(DG)(DG)(DG) (DG)(DA)(DT)(DT)(DA) (DC)(DT)(DC)(DC)(DC)(DT)(DA)(DG)(DT)(DC) (DT)(DC)(DC)(DA)(DG) (DG)(DC)(DA)(DC) (DG)(DT)(DG)(DT)(DC)(DA)(DG)(DA)(DT)(DA) (DT)(DA)(DT)(DA)(DC)(DA) (DT)(DC)(DG) (DA)(DT)

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Macromolecule #2: DNA Lagging Strand

MacromoleculeName: DNA Lagging Strand / type: dna / ID: 2 / Number of copies: 1 / Classification: DNA
Source (natural)Organism: artificial sequences (others)
Molecular weightTheoretical: 44.99166 KDa
SequenceString: (DA)(DT)(DC)(DG)(DA)(DT)(DG)(DT)(DA)(DT) (DA)(DT)(DA)(DT)(DC)(DT)(DG)(DA)(DC)(DA) (DC)(DG)(DT)(DG)(DC)(DC)(DT)(DG)(DG) (DA)(DG)(DA)(DC)(DT)(DA)(DG)(DG)(DG)(DA) (DG) (DT)(DA)(DA)(DT)(DC)(DC) ...String:
(DA)(DT)(DC)(DG)(DA)(DT)(DG)(DT)(DA)(DT) (DA)(DT)(DA)(DT)(DC)(DT)(DG)(DA)(DC)(DA) (DC)(DG)(DT)(DG)(DC)(DC)(DT)(DG)(DG) (DA)(DG)(DA)(DC)(DT)(DA)(DG)(DG)(DG)(DA) (DG) (DT)(DA)(DA)(DT)(DC)(DC)(DC)(DC) (DT)(DT)(DG)(DG)(DC)(DG)(DG)(DT)(DT)(DA) (DA)(DA) (DA)(DC)(DG)(DC)(DG)(DG)(DG) (DG)(DG)(DA)(DC)(DA)(DG)(DC)(DG)(DC)(DG) (DT)(DA)(DC) (DG)(DT)(DG)(DC)(DG)(DT) (DT)(DT)(DA)(DA)(DG)(DC)(DG)(DG)(DT)(DG) (DC)(DT)(DA)(DG) (DA)(DG)(DC)(DT)(DG) (DT)(DC)(DT)(DA)(DC)(DG)(DA)(DC)(DC)(DA) (DA)(DT)(DT)(DG)(DA) (DG)(DC)(DG)(DG) (DC)(DC)(DT)(DC)(DG)(DG)(DC)(DA)(DC)(DC) (DG)(DG)(DG)(DA)(DT)(DT) (DC)(DT)(DG) (DA)(DT)

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Macromolecule #3: Histone H3.1

MacromoleculeName: Histone H3.1 / type: protein_or_peptide / ID: 3 / Number of copies: 2 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 11.504476 KDa
Recombinant expressionOrganism: Escherichia coli (E. coli)
SequenceString:
PHRYRPGTVA LREIRRYQKS TELLIRKLPF QRLVREIAQD FKTDLRFQSS AVMALQEACE AYLVGLFEDT NLCAIHAKRV TIMPKDIQL ARRIRGERA

UniProtKB: Histone H3.1

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Macromolecule #4: Histone H4

MacromoleculeName: Histone H4 / type: protein_or_peptide / ID: 4 / Number of copies: 2 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 9.409056 KDa
Recombinant expressionOrganism: Escherichia coli (E. coli)
SequenceString:
KVLRDNIQGI TKPAIRRLAR RGGVKRISGL IYEETRGVLK VFLENVIRDA VTYTEHAKRK TVTAMDVVYA LKRQGRTLYG FGG

UniProtKB: Histone H4

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Macromolecule #5: Histone H2A type 1-B/E

MacromoleculeName: Histone H2A type 1-B/E / type: protein_or_peptide / ID: 5 / Number of copies: 2 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 12.167232 KDa
Recombinant expressionOrganism: Escherichia coli (E. coli)
SequenceString:
ARAKAKTRSS RAGLQFPVGR VHRLLRKGNY SERVGAGAPV YLAAVLEYLT AEILELAGNA ARDNKKTRII PRHLQLAIRN DEELNKLLG RVTIAQGGVL PNIQAVLLPK KT

UniProtKB: Histone H2A type 1-B/E

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Macromolecule #6: Histone H2B type 1-K

MacromoleculeName: Histone H2B type 1-K / type: protein_or_peptide / ID: 6 / Number of copies: 2 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 10.607174 KDa
Recombinant expressionOrganism: Escherichia coli (E. coli)
SequenceString:
RSRKESYSVY VYKVLKQVHP DTGISSKAMG IMNSFVNDIF ERIAGEASRL AHYNKRSTIT SREIQTAVRL LLPGELAKHA VSEGTKAVT KYTSAK

UniProtKB: Histone H2B type 1-K

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Macromolecule #7: Single-chain antibody (VHH) 1G1

MacromoleculeName: Single-chain antibody (VHH) 1G1 / type: protein_or_peptide / ID: 7 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 13.460804 KDa
Recombinant expressionOrganism: Escherichia coli (E. coli)
SequenceString:
AEVQLVESGG GLVQAGGSLS VSCTASGRTV SSYAMGWFRQ APGKEREFVA GISRRGSRTY YVDSVEGRFT ISRDNAKNTV YLQMNSLKP EDTAVYYCAV RSRGSDYGQI DSYGYWGQGT QVTVS

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Experimental details

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Structure determination

Methodcryo EM
Processingsingle particle reconstruction
Aggregation stateparticle

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Sample preparation

Concentration1.1 mg/mL
BufferpH: 7.6
Details: 20 mM HEPES pH7.6, 50 mM NaCl, 0.5 mM MgCl2, 1 mM EDTA
GridModel: Quantifoil R2/2 / Material: COPPER / Mesh: 200 / Support film - Material: CARBON / Support film - topology: HOLEY / Pretreatment - Type: GLOW DISCHARGE / Pretreatment - Time: 10 sec.
VitrificationCryogen name: ETHANE / Chamber humidity: 100 % / Chamber temperature: 277 K / Instrument: FEI VITROBOT MARK IV

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Electron microscopy

MicroscopeTFS KRIOS
Image recordingFilm or detector model: GATAN K3 (6k x 4k) / Number real images: 8302 / Average electron dose: 50.0 e/Å2
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 2.2 µm / Nominal defocus min: 1.0 µm
Sample stageSpecimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER / Cooling holder cryogen: NITROGEN
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

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Image processing

Particle selectionNumber selected: 10338300
CTF correctionSoftware - Name: cryoSPARC (ver. 4.7) / Type: PHASE FLIPPING AND AMPLITUDE CORRECTION
Startup modelType of model: INSILICO MODEL
Final reconstructionNumber classes used: 1 / Applied symmetry - Point group: C1 (asymmetric) / Algorithm: BACK PROJECTION / Resolution.type: BY AUTHOR / Resolution: 3.1 Å / Resolution method: FSC 0.143 CUT-OFF / Software - Name: cryoSPARC (ver. 4.7) / Number images used: 136376
Initial angle assignmentType: PROJECTION MATCHING / Software - Name: cryoSPARC (ver. 4.7)
Final angle assignmentType: PROJECTION MATCHING / Software - Name: cryoSPARC (ver. 4.7)
Final 3D classificationNumber classes: 1 / Software - Name: cryoSPARC (ver. 4.7)
FSC plot (resolution estimation)

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Atomic model buiding 1

Initial model
PDB IDChain

3lz0

source_name: PDB, initial_model_type: experimental model
source_name: AlphaFold, initial_model_type: in silico model
RefinementSpace: REAL / Protocol: FLEXIBLE FIT
Output model

PDB-9zeo:
Competition for different elements of the nucleosome acidic patch yields distinct functional outcomes. VHH 1G1

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